28912280

素因数分解:

$2^3\times 5^1\times {\mathrm{722807}}^1$

素因数の和:722818

約数の個数: 16

約数和(自身を含む): 65052720

約数和(自身を除く): 36140440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 722807, 1445614, 2891228, 3614035, 5782456, 7228070, 14456140, 28912280]

約数ペア:

[(1, 28912280), (2, 14456140), (4, 7228070), (5, 5782456), (8, 3614035), (10, 2891228), (20, 1445614), (40, 722807)]